It was caused by going full SSL on our sites. Minion has cache for the images so I didn't see it right away when I loaded Minion after the switch.

Sorry for the trouble!

Yay, Minion up and running correctly again

Now it's just your website that has a hickup...

Usually when hovering mouse on addon-name on frontpage, the little popup shows info and a minipic of the addon... now it's just the info.. no picture.
And for me, Firefox' addressfield shows "..A grey lock with an orange triangle indicates that Firefox is not blocking insecure passive content, such as images.."